Effect of Beetroot Juice Supplements with Caffeine Co-ingestion on Lower-limb Strength in Females
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 15
- 试验地点
- 2
- 主要终点
- Change of height reached in jump
研究概览
简要总结
The aim of this study is to evaluate the acute effects of beetroot juice and caffeine, consumed individually or in combination, on lower-limb strength and muscular endurance in physically active women. The main questions it aims to answer are:
- Does the co-ingestion of beetroot juice and caffeine enhance lower-limb strength and muscular endurance more than either substance alone or a placebo?
- How do the acute effects of beetroot juice interact with caffeine on physical performance?
The study was conducted using a randomized, crossover design to evaluate the following four conditions:
Beetroot juice with placebo Caffeine with placebo Beetroot juice with caffeine Placebo only
Each participant completed all conditions, with a sufficient washout period between sessions to eliminate potential carryover effects. This design allowed for a direct comparison of the acute effects of each supplementation strategy on lower-limb strength and muscular endurance.
Participant Protocol
Participants consumed their assigned supplement on a single testing day for each condition. After supplementation, they performed standardized tests to measure lower-limb strength and muscular endurance. Progress was monitored, and data from all conditions were collected to assess the acute effects of each intervention.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Other
- 盲法
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 18 Years 至 35 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •Minimal experience of six months of strength training
- •Be familiarized with the exercise test: counter movement jump (CMJ), barbell back squats, leg press and knee extension.
排除标准
- •Supplementation consumption
- •Sports injuries
结局指标
主要结局
Change of height reached in jump
时间窗: Visit 1 (Day 1), Visit 2 (Day 5), Visit 3 (Day 9), Visit 4 (Day 13)
Evaluated through Countermovement jump test with a recovery period of 45 seconds between jumps. The height reached was recorded in centimeters.
次要结局
- Movement velocity(Visit 1 (Day 1), Visit 2 (Day 5), Visit 3 (Day 9), Visit 4 (Day 13))
- Muscular endurance test(Visit 1 (Day 1), Visit 2 (Day 5), Visit 3 (Day 9), Visit 4 (Day 13))
- Rating of perceived exertion (RPE).(Visit 1 (Day 1), Visit 2 (Day 5), Visit 3 (Day 9), Visit 4 (Day 13))
研究者
Jose Manuel Jurado Castro
Principal Investigator
Maimónides Biomedical Research Institute of Córdoba